Phys. Rev. B 40, 5837–5840 (1989)

Coherent fcc stacking in epitaxial Co/Cu superlattices

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F. J. Lamelas, C. H. Lee, Hui He, W. Vavra, and Roy Clarke
Department of Physics, The University of Michigan, Ann Arbor, Michigan 48109

Received 20 March 1989; published in the issue dated 15 September 1989

A series of epitaxial Co/Cu superlattices has been grown on GaAs(110) substrates by molecular-beam epitaxy. Detailed analysis of x-ray diffuse scattering scans along Co (101¯l) reveals metastable fcc stacking of Co, with stacking coherence extending across Co layers at thicknesses below 20 Å, while coherent interfaces are obtained at Co thickness up to 40 Å. We discuss possible mechanisms for stabilizing the stacking sequence.

URL:

http://link.aps.org/doi/10.1103/PhysRevB.40.5837

DOI:

10.1103/PhysRevB.40.5837

PACS:

64.60.My, 68.55.Jk, 75.30.Gw

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Phys. Rev. B 40, 5837–5840 (1989)

Coherent fcc stacking in epitaxial Co/Cu superlattices